He wanted to confirm his identity, yet he wasn't overly concerned about whether he was the real deal.
As he carelessly closed the door behind him, Fu Qian reached the conclusion above.
The reason for this was clear to him; the actions he had just taken were far from sufficient to eliminate the suspicions of these few individuals, just insufficient to definitively prove there was an issue with himself.
In fact, this was exactly what Fu Qian had wanted.
Having realized the oddity of the situation, probing the attitudes of these individuals toward a suspicious "Camus" had become more important than perfectly disguising himself to participate in the action.
After all, to Fu Qian, the actions had been confirmed, and given Veheler's level of trust in Camus, there was no longer much information worth obtaining.
So it was worth testing how credible the content of the action really was.